I don't see Tom Tillerman chiming in here.....maybe some of the $54 million he extracted from Polaris in wages, bonuses and stock options could have been used to develope a better fuel system on the snowmobiles. I just got off a 2008 iqr 600 snowcrosser that has three long trail seasons on it without a hiccup...just add gas and oil, not even a jetting change and it runs and runs all year long at 8600plus. So I know Polaris can build a motor. I also crewchief a couple of thousand mods that run sub 5's and hold sub 1 second 60ft timeslips on sanctioned timing lights....there's something to be said for gasoline thats fully atomised and ready to burn.........putting fuel into the boost port a couple inches from the piston is just plain wrong ...you can get away with it if theres enough heat in the motor.ie..running lean with elevated cylinder, head and piston temps, but you may or may not acheive this on a consistent basis or from one engine to the next, and remapping is really just changing the metered quanity of fuel.....it has nothing to do with atomisation and how the fuel is able to burn. Check out Mike Morans website where Mike has done an excellant job of using high-speed photography to show how an injector fails to atomise fuel....and what he's done to solve the problem. I would also suggest to Polaris to get busy and develope a proper direct injection system, or at least buy your engine developemnt people a garden nozzle to play with to understand atomisation, and mount the injectors as far away from the piston as possible.
Hope you all have good luck with yours as well HAPPY RIDING!!!!!
